CVE-2019-18808

A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.

A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c in the Linux kernel through 5.3.9 allows attackers to cause a denial of service (memory consumption), aka CID-128c66429247.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: use after free in the video driver leads to local privilege escalation (CVE-2019-9458)

• kernel: use-after-free in drivers/bluetooth/hci_ldisc.c (CVE-2019-15917)

• kernel: out-of-bounds access in function hclge_tm_schd_mode_vnet_base_cfg (CVE-2019-15925)

• kernel: memory leak in ccp_run_sha_cmd() (CVE-2019-18808)

• kernel: Denial Of Service in the __ipmi_bmc_register() (CVE-2019-19046)

• kernel: out-of-bounds write in ext4_xattr_set_entry (CVE-2019-19319)

• Kernel: kvm: OOB memory write via kvm_dev_ioctl_get_cpuid (CVE-2019-19332)

• kernel: use-after-free in ext4_put_super (CVE-2019-19447)

• kernel: a malicious USB device in the drivers/input/ff-memless.c leads to use-after-free (CVE-2019-19524)

• kernel: race condition caused by a malicious USB device in the USB character device driver layer (CVE-2019-19537)

• kernel: use-after-free in serial_ir_init_module() (CVE-2019-19543)

• kernel: use-after-free in __ext4_expand_extra_isize and ext4_xattr_set_entry (CVE-2019-19767)

• kernel: use-after-free in debugfs_remove (CVE-2019-19770)

• kernel: out-of-bounds write via crafted keycode table (CVE-2019-20636)

• kernel: possible use-after-free due to a race condition in cdev_get (CVE-2020-0305)

• kernel: out-of-bounds read in in vc_do_resize function (CVE-2020-8647)

• kernel: use-after-free in n_tty_receive_buf_common function (CVE-2020-8648)

• kernel: invalid read location in vgacon_invert_region function (CVE-2020-8649)

• kernel: uninitialized kernel data leak in userspace coredumps (CVE-2020-10732)

• kernel: SELinux netlink permission check bypass (CVE-2020-10751)

• kernel: out-of-bounds write in mpol_parse_str (CVE-2020-11565)

• kernel: mishandles invalid descriptors in drivers/media/usb/gspca/xirlink_cit.c (CVE-2020-11668)

• kernel: buffer overflow in mt76_add_fragment function (CVE-2020-12465)

• kernel: xdp_umem_reg in net/xdp/xdp_umem.c has an out-of-bounds write which could result in crash and data coruption (CVE-2020-12659)

• kernel: sg_write function lacks an sg_remove_request call in a certain failure case (CVE-2020-12770)

• kernel: possible to send arbitrary signals to a privileged (suidroot) parent process (CVE-2020-12826)

• kernel: referencing inode of removed superblock in get_futex_key() causes UAF (CVE-2020-14381)

• kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS (CVE-2020-25641)

• kernel: kernel pointer leak due to WARN_ON statement in video driver leads to local information disclosure (CVE-2019-9455)

• kernel: null pointer dereference in dlpar_parse_cc_property (CVE-2019-12614)

• kernel: null-pointer dereference in drivers/net/fjes/fjes_main.c (CVE-2019-16231)

• kernel: null pointer dereference in drivers/scsi/qla2xxx/qla_os.c (CVE-2019-16233)

• kernel: memory leak in af9005_identify_state() function (CVE-2019-18809)

• kernel: A memory leak in the mwifiex_pcie_alloc_cmdrsp_buf() function (CVE-2019-19056)

• kernel: memory leak in the crypto_report() function (CVE-2019-19062)

• kernel: Two memory leaks in the rtl_usb_probe() function (CVE-2019-19063)

• kernel: A memory leak in the rtl8xxxu_submit_int_urb() function (CVE-2019-19068)

• kernel: A memory leak in the predicate_parse() function (CVE-2019-19072)

• kernel: information leak bug caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c (CVE-2019-19533)

• kernel: Null pointer dereference in drop_sysctl_table() (CVE-2019-20054)

• kernel: kernel stack information leak on s390/s390x (CVE-2020-10773)

• kernel: possibility of memory disclosure when reading the file /proc/sys/kernel/rh_features (CVE-2020-10774)

• kernel: vhost-net: stack overflow in get_raw_socket while checking sk_family field (CVE-2020-10942)

• kernel: sync of excessive duration via an XFS v5 image with crafted metadata (CVE-2020-12655)

The openSUSE Leap 15.1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-14615: Insufficient control flow in certain data structures for some Intel(R) Processors with Intel(R) Processor Graphics may have allowed an unauthenticated user to potentially enable information disclosure via local access (bnc#1160195 bnc#1165881).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in the Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in the Marvell WiFi chip driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).
• CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c. It did not check the length of variable elements in a beacon head, leading to a buffer overflow (bnc#1152107).
• CVE-2019-16994: In the Linux kernel before 5.0, a memory leak exists in sit_init_net() in net/ipv6/sit.c when register_netdev() fails to register sitn->fb_tunnel_dev, which may cause denial of service, aka CID-07f12b26e21a (bnc#1161523).
• CVE-2019-18808: A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).
• CVE-2019-19036: btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).
• CVE-2019-19045: A memory leak in the mlx5_fpga_conn_create_cq() function in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).
• CVE-2019-19051: A memory leak in the i2400m_op_rfkill_sw_toggle() function in drivers/net/wimax/i2400m/op-rfkill.c allowed attackers to cause a denial of service (memory consumption), aka CID-6f3ef5c25cc7 (bnc#1159024).
• CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).
• CVE-2019-19066: A memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service (memory consumption) by triggering bfa_port_get_stats() failures, aka CID-0e62395da2bd (bnc#1157303).
• CVE-2019-19318: Mounting a crafted btrfs image twice can cause an rwsem_down_write_slowpath use-after-free because (in rwsem_can_spin_on_owner in kernel/locking/rwsem (bnc#1158026).
• CVE-2019-19319: A setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call (bnc#1158021).
• CVE-2019-19332: An out-of-bounds memory write issue was found in the way the Linux kernel's KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could use this flaw to crash the system, resulting in a denial of service (bnc#1158827).
• CVE-2019-19338: There was an incomplete fix for Transaction Asynchronous Abort (TAA) (bnc#1158954).
• CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c (bnc#1158819).
• CVE-2019-19526: There was a use-after-free bug that can be…

These are all security issues fixed in the kernel-devel-5.14.6-1.4 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the kernel-devel-longterm-6.6.17-1.1 package on the GA media of openSUSE Tumbleweed.

The SUSE Linux Enterprise 15 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-19767: Fixed ext4_expand_extra_isize mishandles, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c (bnc#1159297).
• CVE-2019-18808: Fixed a memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption) (bnc#1156259).
• CVE-2019-19066: Fixed memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c that allowed attackers to cause a denial of service (memory consumption) by triggering bfa_port_get_stats() failures (bnc#1157303).
• CVE-2019-19051: Fixed memory leak in the i2400m_op_rfkill_sw_toggle() function in drivers/net/wimax/i2400m/op-rfkill.c that allowed attackers to cause a denial of service (memory consumption) (bnc#1159024).
• CVE-2019-19338: There was an incomplete fix for Transaction Asynchronous Abort (TAA) (bsc#1158954).
• CVE-2019-19332: There was an OOB memory write via kvm_dev_ioctl_get_cpuid (bsc#1158827).
• CVE-2019-19537: There was a race condition bug that could have been caused by a malicious USB device in the USB character device driver layer (bnc#1158904).
• CVE-2019-19535: There was an info-leak bug that could have been caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver (bnc#1158903).
• CVE-2019-19527: There was a use-after-free bug that could have been caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver (bnc#1158900).
• CVE-2019-19526: There was a use-after-free bug that could have been caused by a malicious USB device in the drivers/nfc/pn533/usb.c driver (bnc#1158893).
• CVE-2019-19533: There was an info-leak bug that could have been caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c driver (bnc#1158834).
• CVE-2019-19532: There were multiple out-of-bounds write bugs that could have been caused by a malicious USB device in the Linux kernel HID drivers (bnc#1158824).
• CVE-2019-19523: There was a use-after-free bug that could have been caused by a malicious USB device in the drivers/usb/misc/adutux.c driver (bnc#1158823).
• CVE-2019-15213: An issue was discovered in the Linux kernel, there was a use-after-free caused by a malicious USB device in the drivers/media/usb/dvb-usb/dvb-usb-init.c driver (bnc#1146544).
• CVE-2019-19531: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/yurex.c driver (bnc#1158445).
• CVE-2019-19543: There was a use-after-free in serial_ir_init_module() in drivers/media/rc/serial_ir.c (bnc#1158427).
• CVE-2019-19525: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver (bnc#1158417).
• CVE-2019-19530: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/class/cdc-acm.c driver (bnc#1158410).
• CVE-2019-19536: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_pro.c driver (bnc#1158394).
• CVE-2019-19524: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/input/ff-memless.c driver (bnc#1158413).
• CVE-2019-19528: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/iowarrior.c driver (bnc#1158407).
• CVE-2019-19534: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_core.c driver (bnc#1158398).
• CVE-2019-19529: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/net/can/usb/mcba_usb.c driver (bnc#1158381).
• CVE-2019-14901: A heap overflow flaw was found in the Linux kernel in Marvell WiFi chip driver. The vulnerability allowed a remote…

The SUSE Linux Enterprise 12 SP5 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-20095: mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c had some error-handling cases that did not free allocated hostcmd memory. This will cause a memory leak and denial of service (bnc#1159909).
• CVE-2019-20054: Fixed a a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links (bnc#1159910).
• CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service (bnc#1159908).
• CVE-2019-19966: Fixed a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that will cause denial of service (bnc#1159841).
• CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c, related to dump_orphan_list in fs/ext4/super.c (bnc#1158819).
• CVE-2019-19319: A setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call (bnc#1158021).
• CVE-2019-19767: Fixed mishandling of ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c (bnc#1159297).
• CVE-2019-18808: A memory leak in the ccp_run_sha_cmd() function in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption) (bnc#1156259).
• CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c where the length of variable elements in a beacon head were not checked, leading to a buffer overflow (bnc#1152107).
• CVE-2019-19066: A memory leak in the bfad_im_get_stats() function in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service (memory consumption) by triggering bfa_port_get_stats() failures (bnc#1157303).
• CVE-2019-19051: There was a memory leak in the i2400m_op_rfkill_sw_toggle() function in drivers/net/wimax/i2400m/op-rfkill.c in the Linux kernel allowed attackers to cause a denial of service (memory consumption) (bnc#1159024).
• CVE-2019-19338: There was an incomplete fix for Transaction Asynchronous Abort (TAA) (bnc#1158954).
• CVE-2019-19332: There was an OOB memory write via kvm_dev_ioctl_get_cpuid (bnc#1158827).
• CVE-2019-19537: There was a race condition bug that can be caused by a malicious USB device in the USB character device driver layer (bnc#1158904).
• CVE-2019-19535: There was an info-leak bug that can be caused by a malicious USB device in the drivers/net/can/usb/peak_usb/pcan_usb_fd.c driver (bnc#1158903).
• CVE-2019-19527: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver (bnc#1158900).
• CVE-2019-19526: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/nfc/pn533/usb.c driver (bnc#1158893).
• CVE-2019-19533: There was an info-leak bug that can be caused by a malicious USB device in the drivers/media/usb/ttusb-dec/ttusb_dec.c driver (bnc#1158834).
• CVE-2019-19532: There were multiple out-of-bounds write bugs that can be caused by a malicious USB device in the Linux kernel HID drivers (bnc#1158824).
• CVE-2019-19523: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79 (bnc#1158381 1158823 1158834).
• CVE-2019-15213: There was a use-after-free caused by a malicious USB device in the drivers/media/usb/dvb-usb/dvb-usb-init.c driver (bnc#1146544).
• CVE-2019-19531: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/yurex.c driver (bnc#1158445).
• CVE-2019-19543: There was a use-after-free in serial_ir_init_module() in…

The SUSE Linux Enterprise 15 SP1 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in the Marvell WiFi driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in the Marvell WiFi driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).
• CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c. It did not check the length of variable elements in a beacon head, leading to a buffer overflow (bnc#1152107).
• CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).
• CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).
• CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).
• CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).
• CVE-2019-19051: A memory leak in drivers/net/wimax/i2400m/op-rfkill.c allowed attackers to cause a denial of service (memory consumption), aka CID-6f3ef5c25cc7 (bnc#1159024).
• CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).
• CVE-2019-19066: A memory leak in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service (memory consumption), aka CID-0e62395da2bd (bnc#1157303).
• CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).
• CVE-2019-19319: A slab-out-of-bounds write access could have occured when setxattr was called after mounting of a specially crafted ext4 image (bnc#1158021).
• CVE-2019-19332: An out-of-bounds memory write issue was found in the way the KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could have used this flaw to crash the system (bnc#1158827).
• CVE-2019-19338: There was an incomplete fix for an issue with Transactional Synchronisation Extensions in the KVM code (bsc#1158954).
• CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).
• CVE-2019-19523: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79 (bsc#1158823).
• CVE-2019-19526: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/nfc/pn533/usb.c driver, aka CID-6af3aa57a098 (bsc#1158893).
• CVE-2019-19527: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver, aka CID-9c09b214f30e (bsc#1158900).
• CVE-2019-19532: There were multiple out-of-bounds write bugs that can be caused by a malicious USB HID device, aka CID-d9d4b1e46d95 (bsc#1158824). -…

The SUSE Linux Enterprise 12 SP4 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).
• CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069).
• CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).
• CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service or possibly obtain sensitive information from kernel memory (bnc#1162109).
• CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c (bnc#1160966).
• CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures (bnc#1161522).
• CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service (bnc#1161523).
• CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures (bnc#1161518).
• CVE-2019-14896: A heap overflow was found in the add_ie_rates() function of the Marvell Wifi Driver (bsc#1157157).
• CVE-2019-14897: A stack overflow was found in the lbs_ibss_join_existing() function of the Marvell Wifi Driver (bsc#1157155).
• CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).
• CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).
• CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).
• CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition (bnc#1159911).
• CVE-2019-20095: Fixed a memory leak and denial of service in mwifiex_tm_cmd in drivers/net/wireless/marvell/mwifiex/cfg80211.c, where some error-handling cases did not free allocated hostcmd memory (bnc#1159909).
• CVE-2019-20054: Fixed a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c related to put_links (bnc#1159910).
• CVE-2019-20096: Fixed a memory leak in __feat_register_sp() in net/dccp/feat.c, which may cause denial of service (bnc#1159908).
• CVE-2019-19966: Fixed a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that will cause denial of service (bnc#1159841).
• CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).
• CVE-2019-19319: A setxattr operation, after a mount of a crafted ext4 image, could cause a slab-out-of-bounds write access because of an ext4_xattr_set_entry use-after-free in fs/ext4/xattr.c when a large old_size value is used in a memset call (bnc#1158021).
• CVE-2019-19767: The Linux kernel mishandled ext4_expand_extra_isize, as demonstrated by use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c (bnc#1159297).
• CVE-2019-18808: A memory leak in the ccp_run_sha_cmd() in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption) (bnc#1156259).
• CVE-2019-19066: A memory leak in the bfad_im_get_stats() in drivers/scsi/bfa/bfad_attr.c allowed attackers…

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-8992: An issue was discovered in ext4_protect_reserved_inode in fs/ext4/block_validity.c that allowed attackers to cause a soft lockup via a crafted journal size (bnc#1164069).
• CVE-2020-8648: There was a use-after-free vulnerability in the n_tty_receive_buf_common function in drivers/tty/n_tty.c (bnc#1162928).
• CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c. It did not check the length of variable elements in a beacon head, leading to a buffer overflow (bnc#1152107).
• CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9 (bnc#1162109).
• CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).
• CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).
• CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in the Marvell WiFi driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in the Marvell WiFi driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).
• CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka CID-7dc40713618c (bnc#1160966).
• CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).
• CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).
• CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).
• CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5 (bnc#1159911).
• CVE-2019-19927: A slab-out-of-bounds read access could have been caused when mounting a crafted f2fs filesystem image and performing some operations on it, in drivers/gpu/drm/ttm/ttm_page_alloc.c (bnc#1160147).
• CVE-2019-20095: Several memory leaks were found in drivers/net/wireless/marvell/mwifiex/cfg80211.c, aka CID-003b686ace82 (bnc#1159909).
• CVE-2019-20054: There was a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e (bnc#1159910).
• CVE-2019-20096: There was a memory leak in __feat_register_sp() in net/dccp/feat.c, aka CID-1d3ff0950e2b (bnc#1159908).
• CVE-2019-19966: There was a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that could have caused a denial of service, aka CID-dea37a972655 (bnc#1159841).
• CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).
• CVE-2019-19319: A slab-out-of-bounds write…

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).
• CVE-2019-14896: A heap-based buffer overflow vulnerability was found in the Marvell WiFi driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP (bnc#1157157).
• CVE-2019-14897: A stack-based buffer overflow was found in the Marvell WiFi driver. An attacker is able to cause a denial of service (system crash) or, possibly execute arbitrary code, when a STA works in IBSS mode (allows connecting stations together without the use of an AP) and connects to another STA (bnc#1157155).
• CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).
• CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).
• CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).
• CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).
• CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).
• CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).
• CVE-2019-19319: A slab-out-of-bounds write access could have occured when setxattr was called after mounting of a specially crafted ext4 image (bnc#1158021).
• CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).
• CVE-2019-19767: There were multiple use-after-free errors in __ext4_expand_extra_isize and ext4_xattr_set_entry, related to fs/ext4/inode.c and fs/ext4/super.c, aka CID-4ea99936a163 (bnc#1159297).
• CVE-2019-19927: A slab-out-of-bounds read access occured when mounting a crafted f2fs filesystem image and performing some operations on it (bnc#1160147).
• CVE-2019-19965: There was a NULL pointer dereference in drivers/scsi/libsas/sas_discover.c because of mishandling of port disconnection during discovery, related to a PHY down race condition, aka CID-f70267f379b5 (bnc#1159911).
• CVE-2019-19966: There was a use-after-free in cpia2_exit() in drivers/media/usb/cpia2/cpia2_v4l.c that could have caused a denial of service, aka CID-dea37a972655 (bnc#1159841).
• CVE-2019-20054: There was a NULL pointer dereference in drop_sysctl_table() in fs/proc/proc_sysctl.c, related to put_links, aka CID-23da9588037e (bnc#1159910).
• CVE-2019-20095: Several memory leaks were found in drivers/net/wireless/marvell/mwifiex/cfg80211.c, aka CID-003b686ace82 (bnc#1159909).
• CVE-2019-20096: There was a memory leak in __feat_register_sp() in net/dccp/feat.c, aka CID-1d3ff0950e2b (bnc#1159908).
• CVE-2020-7053: There was a use-after-free (write) in the i915_ppgtt_close function in drivers/gpu/drm/i915/i915_gem_gtt.c, aka CID-7dc40713618c (bnc#1160966).
• CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9 (bnc#1162109).
• CVE-2020-8428: There was a use-after-free bug in fs/namei.c, which allowed…

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-2732: Fixed an issue affecting Intel CPUs where an L2 guest may trick the L0 hypervisor into accessing sensitive L1 resources (bsc#1163971).
• CVE-2019-19338: There was an incomplete fix for an issue with Transactional Synchronisation Extensions in the KVM code (bsc#1158954).
• CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).
• CVE-2019-14896: A heap overflow was found in the add_ie_rates() function of the Marvell Wifi Driver (bsc#1157157).
• CVE-2019-14897: A stack overflow was found in the lbs_ibss_join_existing() function of the Marvell Wifi Driver (bsc#1157155).
• CVE-2019-15213: A use-after-free bug caused by a malicious USB device was found in drivers/media/usb/dvb-usb/dvb-usb-init.c (bsc#1146544).
• CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).
• CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).
• CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).
• CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).
• CVE-2019-19051: A memory leak in drivers/net/wimax/i2400m/op-rfkill.c allowed attackers to cause a denial of service (memory consumption), aka CID-6f3ef5c25cc7 (bnc#1159024).
• CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).
• CVE-2019-19066: A memory leak in drivers/scsi/bfa/bfad_attr.c allowed attackers to cause a denial of service (memory consumption), aka CID-0e62395da2bd (bnc#1157303).
• CVE-2019-19318: Mounting a crafted btrfs image twice could have caused a use-after-free (bnc#1158026).
• CVE-2019-19319: A slab-out-of-bounds write access could have occured when setxattr was called after mounting of a specially crafted ext4 image (bnc#1158021).
• CVE-2019-19332: An out-of-bounds memory write issue was found in the way the KVM hypervisor handled the 'KVM_GET_EMULATED_CPUID' ioctl(2) request to get CPUID features emulated by the KVM hypervisor. A user or process able to access the '/dev/kvm' device could have used this flaw to crash the system (bnc#1158827).
• CVE-2019-19447: Mounting a crafted ext4 filesystem image, performing some operations, and unmounting could have led to a use-after-free in fs/ext4/super.c (bnc#1158819).
• CVE-2019-19523: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79 (bsc#1158823).
• CVE-2019-19524: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/input/ff-memless.c driver, aka CID-fa3a5a1880c9 (bsc#1158413).
• CVE-2019-19525: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/net/ieee802154/atusb.c driver, aka CID-7fd25e6fc035 (bsc#1158417).
• CVE-2019-19526: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/nfc/pn533/usb.c driver, aka CID-6af3aa57a098 (bsc#1158893).
• CVE-2019-19527: There was a use-after-free bug that can be caused by a malicious USB device in the drivers/hid/usbhid/hiddev.c driver, aka CID-9c09b214f30e (bsc#1158900).
• CVE-2019-19528: There was a use-after-free bug that can be caused by a…

The SUSE Linux Enterprise 12 SP4 real-time kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).
• CVE-2019-14895: A heap-based buffer overflow was discovered in the Marvell WiFi driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service or possibly execute arbitrary code (bnc#1157158).
• CVE-2019-14896: A heap overflow was found in the add_ie_rates() function of the Marvell Wifi Driver (bsc#1157157).
• CVE-2019-14897: A stack overflow was found in the lbs_ibss_join_existing() function of the Marvell Wifi Driver (bsc#1157155).
• CVE-2019-14901: A heap overflow flaw was found in the Marvell WiFi driver. The vulnerability allowed a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code (bnc#1157042).
• CVE-2019-15213: A use-after-free bug caused by a malicious USB device was found in drivers/media/usb/dvb-usb/dvb-usb-init.c (bsc#1146544).
• CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).
• CVE-2019-18660: An information disclosure bug occured because the Spectre-RSB mitigation were not in place for all applicable CPUs, aka CID-39e72bf96f58 (bnc#1157038).
• CVE-2019-18683: Multiple race conditions were discovered in drivers/media/platform/vivid. It was exploitable for privilege escalation if local users had access to /dev/video0, but only if the driver happened to be loaded. At least one of these race conditions led to a use-after-free (bnc#1155897).
• CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).
• CVE-2019-18809: A memory leak in drivers/media/usb/dvb-usb/af9005.c allowed attackers to cause a denial of service (memory consumption), aka CID-2289adbfa559 (bnc#1156258).
• CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).
• CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).
• CVE-2019-19051: A memory leak in drivers/net/wimax/i2400m/op-rfkill.c allowed attackers to cause a denial of service (memory consumption), aka CID-6f3ef5c25cc7 (bnc#1159024).
• CVE-2019-19052: A memory leak in drivers/net/can/usb/gs_usb.c allowed attackers to cause a denial of service (memory consumption), aka CID-fb5be6a7b486 (bnc#1157324).
• CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).
• CVE-2019-19056: A memory leak in drivers/net/wireless/marvell/mwifiex/pcie.c allowed attackers to cause a denial of service (memory consumption), aka CID-db8fd2cde932 (bnc#1157197).
• CVE-2019-19057: Two memory leaks in drivers/net/wireless/marvell/mwifiex/pcie.c allowed attackers to cause a denial of service (memory consumption), aka CID-d10dcb615c8e (bnc#1157193 bsc#1157197).
• CVE-2019-19058: A memory leak in drivers/net/wireless/intel/iwlwifi/fw/dbg.c allowed attackers to cause a denial of service (memory consumption), aka CID-b4b814fec1a5 (bnc#1157145).
• CVE-2019-19060: A memory leak in drivers/iio/imu/adis_buffer.c allowed attackers to cause a denial of service (memory consumption), aka CID-ab612b1daf41 (bnc#1157178).
• CVE-2019-19062: A memory…

The SUSE Linux Enterprise 15 SP1 real-time kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2019-14615: An information disclosure vulnerability existed due to insufficient control flow in certain data structures for some Intel(R) Processors (bnc#1160195).
• CVE-2019-14895: A heap-based buffer overflow was discovered in the Marvell WiFi driver. The flaw could occur when the station attempts a connection negotiation during the handling of the remote devices country settings. This could allow the remote device to cause a denial of service or possibly execute arbitrary code (bnc#1157158).
• CVE-2019-14896: A heap overflow was found in the add_ie_rates() function of the Marvell Wifi Driver (bsc#1157157).
• CVE-2019-14897: A stack overflow was found in the lbs_ibss_join_existing() function of the Marvell Wifi Driver (bsc#1157155).
• CVE-2019-14901: A heap overflow flaw was found in the Marvell WiFi driver. The vulnerability allowed a remote attacker to cause a system crash, resulting in a denial of service, or execute arbitrary code (bnc#1157042).
• CVE-2019-15213: A use-after-free bug caused by a malicious USB device was found in drivers/media/usb/dvb-usb/dvb-usb-init.c (bsc#1146544).
• CVE-2019-16746: An issue was discovered in net/wireless/nl80211.c. The check for the length of variable elements in a beacon head was insufficient, leading to a buffer overflow (bnc#1152107).
• CVE-2019-16994: A memory leak existed in sit_init_net() in net/ipv6/sit.c which might have caused denial of service, aka CID-07f12b26e21a (bnc#1161523).
• CVE-2019-18660: An information disclosure bug occured because the Spectre-RSB mitigation were not in place for all applicable CPUs, aka CID-39e72bf96f58 (bnc#1157038).
• CVE-2019-18683: Multiple race conditions were discovered in drivers/media/platform/vivid. It was exploitable for privilege escalation if local users had access to /dev/video0, but only if the driver happened to be loaded. At least one of these race conditions led to a use-after-free (bnc#1155897).
• CVE-2019-18808: A memory leak in drivers/crypto/ccp/ccp-ops.c allowed attackers to cause a denial of service (memory consumption), aka CID-128c66429247 (bnc#1156259).
• CVE-2019-18809: A memory leak in drivers/media/usb/dvb-usb/af9005.c allowed attackers to cause a denial of service (memory consumption), aka CID-2289adbfa559 (bnc#1156258).
• CVE-2019-19036: An issue discovered in btrfs_root_node in fs/btrfs/ctree.c allowed a NULL pointer dereference because rcu_dereference(root->node) can be zero (bnc#1157692).
• CVE-2019-19045: A memory leak in drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c allowed attackers to cause a denial of service (memory consumption) by triggering mlx5_vector2eqn() failures, aka CID-c8c2a057fdc7 (bnc#1161522).
• CVE-2019-19046: There was a memory leak in __ipmi_bmc_register (bsc#1157304).
• CVE-2019-19049: There was an unlikely memory leak in unittest_data_add (bsc#1157173).
• CVE-2019-19051: A memory leak in drivers/net/wimax/i2400m/op-rfkill.c allowed attackers to cause a denial of service (memory consumption), aka CID-6f3ef5c25cc7 (bnc#1159024).
• CVE-2019-19052: A memory leak in drivers/net/can/usb/gs_usb.c allowed attackers to cause a denial of service (memory consumption), aka CID-fb5be6a7b486 (bnc#1157324).
• CVE-2019-19054: A memory leak in the cx23888_ir_probe() function in drivers/media/pci/cx23885/cx23888-ir.c allowed attackers to cause a denial of service (memory consumption) by triggering kfifo_alloc() failures, aka CID-a7b2df76b42b (bnc#1161518).
• CVE-2019-19056: A memory leak in drivers/net/wireless/marvell/mwifiex/pcie.c allowed attackers to cause a denial of service (memory consumption), aka CID-db8fd2cde932 (bnc#1157197).
• CVE-2019-19057: Two memory leaks in drivers/net/wireless/marvell/mwifiex/pcie.c allowed attackers to cause a denial of service (memory consumption), aka CID-d10dcb615c8e (bnc#1157193 bsc#1157197).
• CVE-2019-19058:…

It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-18808)

It was discovered that the Conexant 23885 TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19054)

It was discovered that the VFIO PCI driver in the Linux kernel did not properly handle attempts to access disabled memory spaces. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12888)

It was discovered that the state of network RNG in the Linux kernel was potentially observable. A remote attacker could use this to expose sensitive information. (CVE-2020-16166)

It was discovered that the NFS client implementation in the Linux kernel did not properly perform bounds checking before copying security labels in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-25212)

It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-18808)

It was discovered that the Conexant 23885 TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19054)

It was discovered that the ADIS16400 IIO IMU Driver for the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19061)

It was discovered that the AMD Audio Coprocessor driver for the Linux kernel did not properly deallocate memory in certain error conditions. A local attacker with the ability to load modules could use this to cause a denial of service (memory exhaustion). (CVE-2019-19067)

It was discovered that the Atheros HTC based wireless driver in the Linux kernel did not properly deallocate in certain error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19073, CVE-2019-19074)

It was discovered that the F2FS file system in the Linux kernel did not properly perform bounds checking in some situations, leading to an out-of- bounds read. A local attacker could possibly use this to expose sensitive information (kernel memory). (CVE-2019-9445)

It was discovered that the VFIO PCI driver in the Linux kernel did not properly handle attempts to access disabled memory spaces. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12888)

It was discovered that the cgroup v2 subsystem in the Linux kernel did not properly perform reference counting in some situations, leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service or possibly gain administrative privileges. (CVE-2020-14356)

It was discovered that the state of network RNG in the Linux kernel was potentially observable. A remote attacker could use this to expose sensitive information. (CVE-2020-16166)